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PostgreSQL: How to pass parameters from command line?
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Sure, just use \set v3 'another value'. Just remember, when you need to quote the value in SQL statement, use apostrophes around variable name, like this: SELECT * FROM foo WHERE bar = :'v3';
– Cromax
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Numpy: find first index of value fast
How can I find the index of the first occurrence of a number in a Numpy array?
Speed is important to me. I am not interested in the following answers because they scan the whole array and don't stop when they find the first occurrence:
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What are free monads?
...m a Y to an X without gaining anything extra.
Examples: a monoid (X) is a set (Y) with extra structure (P) that basically says it has an operation (you can think of addition) and some identity (like zero).
So
class Monoid m where
mempty :: m
mappend :: m -> m -> m
Now, we all know ...
How can I mock dependencies for unit testing in RequireJS?
...o it creates a new context where the definitions for Hurp and Durp will be set by the objects you passed into the function. The Math.random for the name is maybe a bit dirty but it works. Cause if you'll have a bunch of test you need to create new context for every suite to prevent reusing your mock...
recursively add file extension to all files
...e a huge number of files in the directory structure (causing bash to get upset about the length of the list of files to iterate over).
– DrAl
Jul 10 '09 at 9:17
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git: Apply changes introduced by commit in one repo to another repo
... Works good. If you have problems with commit then do 'git reset HEAD; git add .'.
– gumik
Oct 16 '12 at 9:53
5
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Recursive sub folder search and return files in a list python
...f a certain file type. I am having an issue with the script. Its currently set as follows
11 Answers
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Consequences of using graft in Mercurial
... @PaulS: I think all you need to know is that graft can copy changesets around in a more robust way than transplant can. Robust in the sense that renames are handled and that you can resolve conflicts in a merge tool. The details are in the strange merges it does, but that's hopefully not es...
From inside of a Docker container, how do I connect to the localhost of the machine?
...ainer type ip addr show eth0 to discover how its main network interface is set up:
root@e77f6a1b3740:/# ip addr show eth0
863: eth0: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 66:32:13:f0:f1:e3 brd ff:ff:ff:ff:ff:ff
inet 172.17.1.192/...
What is a None value?
...ould never say
Assigning a value of None to a variable is one way to reset it to
its original, empty state.
it's hard to explain what Briggs means in a way which makes sense and explains why no one here seems happy with it. One analogy which may help:
In Python, variable names are like sti...